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@quantumsociopath
Welcome to the American Journal of Physics (AJP). AJP publishes papers that meet the needs and intellectual interests of college and university physics teachers and students. This Journal was established in 1933 under the title the American Physics Teacher, which covers Volumes 1 through 7. The name was changed to the American Journal of Physics in 1940.
Traces of One of Universe’s First Stars Detected
n ancient star in the halo surrounding the Milky Way galaxy appears to contain traces of material released by the death of one of the universe’s first stars, a new study reports.
The chemical signature of the ancient star suggests that it incorporated material blasted into space by a supernova explosion that marked the death of a huge star in the early universe — one that may have been 200 times more massive than the sun.
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Keeping my promise about posting kittens
Keeping my promise about posting kittens
Keeping my promise about posting kittens
http://www.newsweek.com/2014/06/27/developments-particle-physics-are-about-transform-our-daily-lives-261710.html
Not a big astrophysics buff, but I thought this was interesting.
The quest for the origin of matter in the Universe had been the subject of philosophical and theological debates over the history of mankind, but quantitative answers could be found only by the scientific achievements of the last...
The carina nebula. (NGC 3372)
http://www.newsweek.com/2014/06/27/developments-particle-physics-are-about-transform-our-daily-lives-261710.html
The carina nebula. (NGC 3372)
When the End is Just the Beginning: Exploring Cosmic Cycles
This is how it all could end: heat death, the moment when the universe expends its last drop of usable energy and settles into lifelessness. Like the ultimate junkyard, only relics of once-burning stars and their planetary companions remain. Wait long enough and even black holes vanish through the slow trickle of Hawking radiation.
That is a bleak and humbling thought. But might nature enjoy an encore or even a revival? A second act for the universe, even if it were many billions of years from now, would offer a source of comfort. We’d know that even if our own civilization—and indeed all possible living worlds in space—blew out like a flame in the wind, flickers of new life could eventually relight.
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i'm planning on leaving through a worm hole as soon as the world starts ending
High-tech specks called quantum dots could bring brighter, more vibrant color to mass market TVs, tablets, phones and other displays. A new technology called 3M quantum dot enhancement film (QDEF) that efficiently makes liquid crystal display (LCD) screens more richly colored is described by an expert.
Neutron Reactions in astrophysics
Not a big astrophysics buff, but I thought this was interesting.
The quest for the origin of matter in the Universe had been the subject of philosophical and theological debates over the history of mankind, but quantitative answers could be found only by the scientific achievements of the last century. A first important step on this way was the development of spectral analysis by Kirchhoff and Bunsen in the middle of the 19th century, which provided first insight in the chemical composition of the sun and the stars. The energy source of the stars and the related processes of nucleosynthesis, however, could be revealed only with the discoveries of nuclear physics. A final break-through came eventually with the compilation of elemental and isotopic abundances in the solar system, which reflect the various nucleosynthetic processes in detail. This review focuses on the mass region above iron, where the formation of the elements is dominated by neutron capture, mainly in the slow (s) and rapid (r) processes. Following a brief historic account and a sketch of the relevant astrophysical models, emphasis is put on the nuclear physics input, where status and perspectives of experimental approaches are presented in some detail, complemented by the indispensable role of theory.
Heavy Quark Physics (Cambridge Monographs on Particle Physics, Nuclear Physics and Cosmology) [Aneesh V. Manohar, Mark B. Wise] on Amazon.com. *FREE* shipping on qualifying offers. Understanding the physics of heavy quarks gives physicists the unique opportunity to test the predictions of Quantum Chromodynamics and the Standard Model. Heavy Quark Physics provides an exciting introduction to this new area of high energy physics. Two leading experts in the field review the standard model
